Measurement of the properties of Higgs boson production at $$ \sqrt{s} $$ = 13 TeV in the H → γγ channel using 139 fb−1 of pp collision data with the ATLAS experiment
Measurement of the properties of Higgs boson production at $$ \sqrt{s} $$ = 13 TeV in the H → γγ channel using 139 fb−1 of pp collision data with the ATLAS experiment
复制标题
使用 ATLAS 实验的 139 fb-1 pp 碰撞数据测量 H γ γ 通道中 $$ sqrt{s} $$ = 13 TeV 处希格斯玻色子产生的特性
DOI：
10.1007/jhep07(2023)088
复制
发表时间：
2023
影响因子：
5.4
通讯作者：
Abusleme Hoffman, A. C.
中科院分区：
文献类型：
--
作者：
Aad, G.;Abbott, B.;Abbott, D. C.;Abeling, K.;Abidi, S. H.;Aboulhorma, A.;Abramowicz, H.;Abreu, H.;Abulaiti, Y.;Abusleme Hoffman, A. C.
利用LHCb探测器采集的积分光度为9.13+/-0.18 pb（-1）的数据样本，测量了根s= 5TeV的pp碰撞中（sic）（1S）、（sic）（2S）和（sic）（3S） （sic）介子的产生截面。（sic）介子重构为(sic)-> mu (+) mu（-）衰变模式。双微分截面乘以分支分数，作为（sic）介子的横向动量p (T)和速度y的函数，在pT < 20 GeV/c和2.0 < y < 4.5范围内测量。在这些pT和y范围内积分的结果是sigma ((sic)(1S)) x B ((sic)(1S)-> mu (+) mu (-))= 2101+/-33+/-83 pb, sigma ((sic)(2S)) x B ((sic)(2S)-> mu (+) mu (-))= 526+/-20+/-21 pb, sigma ((sic)(3S)) x B ((sic)(3S)-> mu (+) mu (-))= 242+/-16+/-10 pb，其中第一个不确定性是统计不确定性，第二个是系统不确定性。测定了两种不同（sic）态测量值之间和不同质心能量测量值之间的截面比。在根s= 5TeV处（sic）（1S）的核修饰因子也通过直接测量的截面结果进行了更新。
The production cross-sections of (sic) mesons, namely (sic)(1S),(sic)(2S) and (sic)(3S), in pp collisions at root s= 5TeV are measured with a data sample corresponding to an integrated luminosity of 9.13+/-0.18 pb (-1) collected by the LHCb detector. The (sic) mesons are reconstructed in the decay mode (sic)-> mu (+) mu (-). Double differential cross-sections times branching fractions, as functions of the transverse momentum p (T) and the rapidity y of the (sic) mesons, are measured in the range pT < 20 GeV/c and 2.0 < y < 4.5. The results integrated over these pT and y ranges aresigma ((sic)(1S)) x B ((sic)(1S)-> mu (+) mu (-))= 2101+/-33+/-83 pb, sigma ((sic)(2S)) x B ((sic)(2S)-> mu (+) mu (-))= 526+/-20+/-21 pb, sigma ((sic)(3S)) x B ((sic)(3S)-> mu (+) mu (-))= 242+/-16+/-10 pb, where the first uncertainties are statistical and the second are systematic. The ratios of cross-sections between measurements of two different (sic) states and between measurements at different centre-of-mass energies are determined. The nuclear modification factor of (sic)(1S) at root s= 5TeV is updated as well using the directly measured cross-section results from this analysis.